Follow Energy Through a Food Web

Read food-web arrows and reason about connected populations.

All worksheets

5 questions0m 0s

Learn the skill

In this worksheet, arrows point from food to the organism that eats it. Trace one link at a time. Predict changes cautiously because a food web has more than one connection.

Worked example

Grass -> rabbit means the rabbit eats grass and receives energy from it. The arrow does not mean the grass eats the rabbit.

Meadow Food Web

This simplified web has these links: grass -> grasshopper; grass -> rabbit; grasshopper -> frog; frog -> hawk; rabbit -> hawk. Grass uses sunlight to make food. The arrows show energy moving from food to consumer. Real meadows have more species and connections.

1. Which organism is a producer in this web? Hawk Grass Frog

2. Which organism eats the grasshopper? Rabbit Grass Frog

3. Which path correctly follows energy through three organisms? Grass -> rabbit -> hawk Hawk -> grass -> frog Rabbit -> frog -> grass

4. If grasshoppers become scarce, which consumer loses a listed food source directly? Grass Frog Rabbit

5. Why cannot this simple web predict exact population sizes? Arrows count all organisms Only sunlight matters It omits other influences and connections

Review your work

0correct

Complete the questions to review each answer.

View dashboard